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    <div>window.onerror捕获到的错误</div>

    <script>
        window.onerror = function (message, url, line, column, error) {
            console.log('捕获到错误:', message, "==line:", line, "==column:", column, "==error:", error);
        }

        setTimeout(() => {
            a.b();
        })

        var f = {};
        f.cc.ee;

    </script>
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